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On the Influence of Enso And IOD on Rainfall Variability Over The Musi Basin, South Sumatra

Science and Technology Indonesia · Vol. 3 No. 4 (2018) · hlm. 157–163

DOI
10.26554/sti.2018.3.4.157-163
ISSN
2580-4391, 2580-4405
Terbit
2018-10-26
Penerbit
Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya
Bahasa
eng

Abstrak

The southern Sumatera region experiences one rainy season and one dry season in a year associated with seasonal change in monsoonal winds. The peak of rainy season is occurring in November-December-January during the northwest monsoon season, while the dry season comes in June-July-August during the southeast monsoon season. This study is designed to evaluate possible influence of the coupled ocean-atmospheric modes in the tropical Indo-Pacific region, namely the El Niño-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) on the rainfall variability over the catchment area of the Music Basin, South Sumatera. The ENSO and IOD occurrences were reflected by the variability of sea surface temperature (SST) in the tropical Pacific and Indian Ocean, respectively. During El Niño and/or positive IOD episode, negative SST anomalies cover the eastern tropical Indian Ocean and western tropical Pacific including the Indonesian seas, leading to suppress convective activities that result in reduce precipitation over the maritime continent. The situation is reversed during La Niña and/or negative IOD event. The results revealed that the high topography area (e.g. Bukit Barisan) was shown to be instrumental to the pattern of rainfall variability. During the 2010 negative IOD co-occurring with La Niña event, the rainfall was significantly increase over the region. This excess rainfall was associated with warm SST anomaly over the eastern tropical Indian Ocean and the Indonesian seas. On the other hand, extreme drought event tends to occur during the 2015 positive IOD simultaneously with the occurrence of the El Niño events Investigation on the SST patterns revealed that cold SST anomalies covered the Indonesian seas during the peak phase of the 2015 positive IOD and El Niño event.

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  • Sriwijaya University
  • Japan Agency for Marine-Earth Science and Technology
  • Universitas Islam Negeri Ar-Raniry
  • Universitas Jambi
  • Meteorological, Climatological, And Geophysical Agency
  • Universitas PGRI Palembang
  • Universitas Gadjah Mada
  • Afiliasi tidak diketahui
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Rekan penulisOrganisasiArtikel bersama
Laila HanumSriwijaya University4
Muhammad IrfanSriwijaya University4
Arum SetiawanSriwijaya University2
Edy SutriyonoSriwijaya University2
Sabaruddin SabaruddinUniversitas Islam Negeri Ar-Raniry2
Deni Okta LestariSriwijaya University2
R. RumantriSriwijaya University2
Baitika BaitikaSriwijaya University2
M. Edi ArmantoSriwijaya University1
NgudiantoroSriwijaya University1
Elisa WildayanaSriwijaya University1
Mohd ZuhdiUniversitas Jambi1
Dea ArdinayaSriwijaya University1
wahid herlandaSriwijaya University1
MuharniSriwijaya University1
Raden PutraSriwijaya University1
Melly AriskaSriwijaya University1
Hamdi AkhsanSriwijaya University1
Supari SupariMeteorological, Climatological, And Geophysical Agency1
Fena Siska PutriyaniSriwijaya University1
Yukio MasumotoJapan Agency for Marine-Earth Science and Technology1
Keisuke MizunoJapan Agency for Marine-Earth Science and Technology1
Dedek KurniawanSriwijaya University1
Zahrial EffendiAfiliasi tidak diketahui1
Doni SetiawanSriwijaya University1
Enggar PatrionoSriwijaya University1
Arif WibowoUniversitas Gadjah Mada1
Hilda ZulkifliSriwijaya University1
Indah Anggraini YusantiUniversitas PGRI Palembang1
Elyani AmiSriwijaya University1
Indra YustianAfiliasi tidak diketahui1
Rupiah Rupiah RupiahAfiliasi tidak diketahui1
Zaidan Panji NegaraSriwijaya University1

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Sumber metadata: OAI-PMH (metadata jurnal) http://sciencetechindonesia.com/index.php/jsti/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">On the Influence of Enso And IOD on Rainfall Variability Over The Musi Basin, South Sumatra</dc:title>
	<dc:creator>Mardiansyah, Wijaya</dc:creator>
	<dc:creator>Setiabudidaya, Dedi</dc:creator>
	<dc:creator>Khakim, M. Yusup Nur</dc:creator>
	<dc:creator>Yustian, Indra</dc:creator>
	<dc:creator>Dahlan, Zulkifli</dc:creator>
	<dc:creator>Iskandar, Iskhaq</dc:creator>
	<dc:subject xml:lang="en-US">ENSO, Indian Ocean Dipole; Musi Basin, rainfall variability; sea surface temperature.</dc:subject>
	<dc:description xml:lang="en-US">The southern Sumatera region experiences one rainy season and one dry season in a year associated with seasonal change in monsoonal winds. The peak of rainy season is occurring in November-December-January during the northwest monsoon season, while the dry season comes in June-July-August during the southeast monsoon season. This study is designed to evaluate possible influence of the coupled ocean-atmospheric modes in the tropical Indo-Pacific region, namely the El Niño-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) on the rainfall variability over the catchment area of the Music Basin, South Sumatera. The ENSO and IOD occurrences were reflected by the variability of sea surface temperature (SST) in the tropical Pacific and Indian Ocean, respectively. During El Niño and/or positive IOD episode, negative SST anomalies cover the eastern tropical Indian Ocean and western tropical Pacific including the Indonesian seas, leading to suppress convective activities that result in reduce precipitation over the maritime continent. The situation is reversed during La Niña and/or negative IOD event. The results revealed that the high topography area (e.g. Bukit Barisan) was shown to be instrumental to the pattern of rainfall variability. During the 2010 negative IOD co-occurring with La Niña event, the rainfall was significantly increase over the region. This excess rainfall was associated with warm SST anomaly over the eastern tropical Indian Ocean and the Indonesian seas. On the other hand, extreme drought event tends to occur during the 2015 positive IOD simultaneously with the occurrence of the El Niño events Investigation on the SST patterns revealed that cold SST anomalies covered the Indonesian seas during the peak phase of the 2015 positive IOD and El Niño event.</dc:description>
	<dc:publisher xml:lang="en-US">Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya</dc:publisher>
	<dc:date>2018-10-26</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>http://sciencetechindonesia.com/index.php/jsti/article/view/136</dc:identifier>
	<dc:identifier>10.26554/sti.2018.3.4.157-163</dc:identifier>
	<dc:source xml:lang="en-US">Science and Technology Indonesia; Vol. 3 No. 4 (2018): October; 157-163</dc:source>
	<dc:source>2580-4391</dc:source>
	<dc:source>2580-4405</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>http://sciencetechindonesia.com/index.php/jsti/article/view/136/87</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2018 Wijaya Mardiansyah, Dedi Setiabudidaya, M. Yusup Nur Khakim, Indra Yustian, Zulkifli Dahlan, Iskhaq Iskandar</dc:rights>
</oai_dc:dc>